High-performance bare shaft lug butterfly valve are mainly made of stainless steel and carbon steel, with an ISO 5211 standard upper flange, which can be matched with operating devices such as handles, worm gears, pneumatic actuators and electric actuators.

Bare-shaft lug-type double-offset butterfly valve.
Type: lug type
Pressure class: Class 150, Class 300/PN10, PN25/JIS 10K, JIS20K
Size: 2″-60″
Material: carbon steel or stainless steel
Product Overview
This page covers a high-performance butterfly valve identified with a lug body and bare-shaft configuration. The selected operating arrangement should be reviewed for the intended installation.
Selection Notes
Confirm the operating medium, service conditions, lug connection requirement, selected materials, seating design, operating arrangement and applicable piping details before ordering.
FAQ
What should be confirmed for the lug connection?
Provide the mating piping and flange information so the required lug configuration can be reviewed.
Can I reuse my existing actuator on this bare-shaft lug butterfly valve?
Provide the actuator mounting and coupling drawings, angular travel and available output torque. Compare them with the selected valve stem interface, mounting details, required travel and torque data, and check the installed clearance. A general interface description alone does not confirm that the complete assembly is compatible.
What information is useful for a quotation?
Include the medium, service conditions, size, connection requirement, selected materials and operating arrangement.
Related Information
Browse Butterfly Valves, see a double-flanged high-performance example, read Valve Technical Knowledge, or visit About Trekre.